@Override public void run(final Context context) throws ExitException { if (context.contains(INSTANCE)) { context.show("Validating DSL ..."); final Either<Boolean> result = DslCompiler.parse(context, DslPath.getDslPaths(context)); if (result.isSuccess()) { context.show("Parse successful."); } else { context.error(result.whyNot()); throw new ExitException(); } } }
private static boolean parse( final String[] args, final Context context, final List<CompileParameter> parameters) { if (args.length == 1 && ("/?".equals(args[0]) || "-?".equals(args[0]) || "?".equals(args[0]))) { showHelpAndExit(context, true, parameters); return false; } final List<ParameterParser> customParsers = new ArrayList<ParameterParser>(); for (final CompileParameter cp : parameters) { if (cp instanceof ParameterParser) { customParsers.add((ParameterParser) cp); } } final List<String> errors = new ArrayList<String>(); for (String a : args) { if (a.startsWith("-") || a.startsWith("/")) a = a.substring(1); final int eq = a.indexOf('='); final String name = a.substring(0, eq != -1 ? eq : a.length()); final String value = eq == -1 ? null : a.substring(eq + 1); final CompileParameter cp = from(name, parameters); if (cp == null) { boolean matched = false; for (final ParameterParser parser : customParsers) { final Either<Boolean> tryParse = parser.tryParse(name, value, context); if (!tryParse.isSuccess()) { errors.add(tryParse.explainError()); matched = true; break; } else if (tryParse.get()) { matched = true; break; } } if (!matched) { errors.add("Unknown parameter: " + name); } } else { if (eq == -1 && cp.getUsage() != null) { if (cp instanceof ParameterParser) { Either<Boolean> tryParse = ((ParameterParser) cp).tryParse(name, null, context); if (tryParse.isSuccess() && tryParse.get()) { context.put(cp, null); } else { errors.add("Expecting " + cp.getUsage() + " after = for " + a); } } else { errors.add("Expecting " + cp.getUsage() + " after = for " + a); } } else { context.put(cp, value); } } } if (args.length == 0 || errors.size() > 0) { for (final String err : errors) { context.error(err); } showHelpAndExit(context, args.length == errors.size(), parameters); return false; } return true; }